• Year
  • 1920 ??
  • Category
  • Miscellaneous (Other, Various) - see notes
  • Radiomuseum.org ID
  • 249830

 Technical Specifications

  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Hearing aid
  • Power type and voltage
  • Dry Batteries / 4,5 Volt
  • Loudspeaker
  • - only for Earphone!
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Hörapparat - Hörhilfe - MGF - Medizinische Geräte-
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Author
  • Model page created by a member from A. See "Data change" for further contributors.

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